S. Heinemeyer, F. v. d. Pahlen, H. Rzehak, C. Schappacher
The Higgs bosons of the MSSM can be produced from the decay of SUSY
particles. We review the evalulation of two decay modes in the MSSM with
complex parameters (cMSSM). The first type is the decay of the heavy scalar top
quark to a lighter scalar quark and a Higgs boson. The second type is the decay
of the heavy chargino to a lighter chargino/neutralino and a Higgs boson. The
evaluation is based on a full one-loop calculation including hard QED and QCD
radiation. We find sizable contributions to many partial decay widths and
branching ratios. They are roughly of O(10%) of the tree-level results, but can
go up to 30% or higher. These contributions are important for the correct
interpretation of scalar top quark decays at a future linear e+e- collider.
View original:
http://arxiv.org/abs/1201.6305
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